code: def to_dict(
      self,
  ) -> Dict[str, Any]:  # pylint: disable=missing-function-docstring
      return default_to_dict(
          self, expected_type=self.expected_type, inputs=self.inputs
      )
  
file_path: haystack/haystack/testing/sample_components/merge_loop.py
imports: from typing import List, Any, Optional, Dict
  import sys
  from haystack.core.component import component
  from haystack.core.errors import DeserializationError
  from haystack.core.serialization import default_to_dict
label_desc: Use image node_id 2 for calling the MergeLoop obj's underlying member method code with example usage: obj.to_dict() and returns: default_to_dict